Name of the Project
Bartons underground mine development.

Location
The project is part of the Nullagine gold operation, in Western Australia.

Client
Millennium Minerals.

Project Description
The Bartons underground mine development has a mineral resource of 627 000 t grading 4.9 g/t gold and an interim ore reserve of 270 000 t grading 4.5 g/t gold.

The project will be Millennium’s first-ever underground mine at Nullagine. The development will access high-grade, free-milling mineralisation, located directly beneath the existing Bartons openpit, where the company has been undertaking an extensive pit cutback.

The project is considering the installation of a gravity sulphide scavenging circuit on the carbon-in-leach tails stream, along with an ultrafine grind and intense cyanidation.

Potential Job Creation
Not stated.

Net Present Value/Internal Rate of Return
Not stated.

Value
The project will require an investment of about A$15-million.

Duration
The expansion project is set for commissioning in the first quarter of 2019.

First high-grade development ore was delivered in July 2018

Latest Developments
Millennium Minerals has increased the ore reserve at its Nullagine project by 70%.

Successful exploration and growth programmes have added about 150 000 oz to the reserve base, which is at 7.1-million tonnes, grading 1.6 g/t gold for 375 300 oz.

The ore reserve increase has delivered mine-life visibility of nearly four years, based on the company’s current production rate of about 100 000 z/y, which Millennium has maintained since September last year.

The updated ore reserve includes a maiden ore reserve estimate for the Golden Gate underground of 220 000 t at 3.8 g/t gold for 27 100 oz.

“This puts us on track to develop our second underground mine at Nullagine at the Golden Gate mining centre later this year and potentially opens up further significant parts of our mineral resource inventory for conversion to ore reserves,” CEO Peter Cash has said.

The company remains committed to continuing to increase the mine life at Nullagine beyond five years, and has a multipronged exploration programme under way.

Key Contracts and Suppliers
GBF Underground Mining (underground mining services contract).

On Budget and on Time?
Too early to state.

Contact Details for Project Information
Millennium Minerals, tel +61 8 9216 9011, fax +61 8 9481 0288 or email info@mmltd.com.au.